未命名文档_Graphic Publishing_COGITO SOFTWARE CO.,LTD English Website

Integration Objects’ OPC Servers software enable end users to seamlessly interface with databases and historians in order to access real-time and historical data. These OPC Server software are based on open industry standards and thus facilitate systems interoperability, data availability and reliability.

Our OPC Server software are available for download and trial purposes.

1. OPC Server Simulators - Full Edition

Easily simulate data and alarms using the OPC Server Simulators – Full Edition without interruption!

OPC Server Simulators – Full Edition are simulation tools that allow end-users, developers and integrators to conduct tests with any third party OPC client software as well as integration and simulation applications.

In fact, this plug and play OPC product offers you simulated real-time data, messages and historical raw and processed data.

In particular, the OPC simulators package includes the advanced OPC simulator, which allows you to:

·Configure your own tags and customize the OPC Server address space

·Specify your OPC data sets easily and by using CSV files

·Support OPC DA and HDA specifications

Consequently, the advanced OPC simulator is very useful for history data playback purposes.

Product Features

·Three OPC Server Components: Advanced Simulator, OPC DA HDA Server and OPC A&E Server

·Advanced Simulator Capabilities: The tags and data values to be simulated are easily configurable using CSV files. This tool can be very useful for simulation based on data history playback.

OPC DA capabilities :

·Multiple OPC DA client connections management

·Support of OPC DA synchronous and asynchronous client read/write requests

·Real-time data simulation for a set of tags with different access rights

OPC HDA capabilities:

·Multiple OPC HDA client connections management

·Support of OPC HDA synchronous and asynchronous client read and update requests

·Historical raw and processed data simulation for a set of tags

OPC A&E capabilities:

·Multiple OPC A&E client connections management

·Multiple OPC A&E client event subscriptions management

·Real-time OPC alarms and events simulation

·Management of event conditions: enable ⁄ disable condition, activate ⁄ deactivate condition and acknowledge condition

·Event tracing capabilities via log files

2. OPC Server for SNMP

Deploy the OPC Server for SNMP to monitor SNMP devices via OPC!

OPC Server for SNMP offers a full monitoring of SNMP* enabled devices from OPC client applications such as Historians, HMI, SCADA or distributed control systems. These devices can include workstations, servers, switches, Uninterrupted Power Supply systems (UPS), PLC, routers, etc.

In fact, you can configure your devices and monitor their availability, status, performance, traffic and other parameters within few easy steps. The OPC Server for SNMP empowers end users to:

·Proactively monitor control and enterprise networks in order to prevent problems from happening

·Raise notifications based on detected issues and the status of critical network and automation assets

·Reduce downtime and problems troubleshooting effort

Moreover, the SNMP OPC Server can also receive trap messages from manageable devices. This reduces the network traffic between the SNMP agents and the server.

This OPC Server is the bridge that you have been looking for to establish a reliable OPC link between operational technology (OT) and information technology (IT). It supports SNMP integration with controllers and devices from a wide variety of manufacturers.

*Simple Network Management Protocol (SNMP) is a popular Internet standard protocol for network management and exchanging information between network devices.

Product Features

·Monitoring of an unlimited number of devices from different vendors using the SNMP protocol

·Support of SNMP version 1, version 2c and version 3

·Discovering of SNMP or non-SNMP enabled devices within a provided IP range using both SNMP and ICMP protocols

·Capturing alerts messages via SNMP traps

·Import of MIB files using XML format

·Easy configuration of the devices to be monitored (graphical configuration tool, duplicate multiple devices, create tags offline, etc.)

·Support of multiple OPC DA client connections

·Events traceability using log files and messages viewer

·Windows service capability allowing automatic restart after the restart of the host machine

3. OPC Server for Wonderware Historian

The OPC Server for Wonderware Historian is OPC certified.

OPC Server for Wonderware Historian is a component of OPC Driver for Databases. It provides OPC DA and HDA clients with access to data collected from Wonderware historians. In fact, the OPC Server for InSQL Historian reads and updates real-time and historical data of Wonderware historians via ADO.

Consequently, users can have all of the historian data at their fingertips for reporting and analysis purposes and within few clicks.

This OPC Server can communicate with multiple historians simultaneously. It supports Wonderware Historian versions 9, 10, 2012 R2, 2014, 2014 R2, 2014 P01, 2017, 2017 Update 2 and 3.

Product Features

·Multiple and simultaneous connections to diverse Wonderware historians via ADO technology

·Graphical user interface, simple and easy to use for server/database configuration

·Full access to real-time data for any OPC DA compliant client

Compliant with OPC HDA clients requesting synchronous and asynchronous reads for:

·Raw data

·Data at time

·Processed data (such as interpolative, minimum, maximum, average, range and total aggregates)

·Modified data

·Item attributes

Compliant with OPC HDA Clients requesting synchronous and asynchronous updates to:

·Insert / Replace item values

·Delete Raw

·Delete at time

·Automatic reconnection to database servers when the connection is lost

·Log event display and archiving

4. OPC HDA Server for OLEDB

The OPC HDA Server for OLEDB makes accessing historical data easy!

Integration Objects’ OPC HDA Server for OLEDB is a plug-and-play OPC Server software. It provides OPC HDA clients with full access to the history data archived in your databases. Using OLEDB providers, this OPC HDA Server enables OPC clients to read data from your database as well as perform update requests.

The OLEDB OPC Server employs industry standards such as OPC and OLEDB. The objective is to build an open architecture for a standard way to share your data with third party applications and meet analysis and reporting needs. You can also use the OPC HDA Server for synchronization purposes between historians.

This OPC Historian Server is a featured component of the OPC driver for databases. It is compliant with OPC HDA standard specifications.

OPC HDA Server for OLEDB is a feature component of the OPC Driver for Databases.

5. OPC HDA Server for ODBC

Use OPC HDA Server for ODBC as an OPC HDA interface for your databases!

Integration Objects’ OPC HDA Server for ODBC is a plug and play OPC Server. It allows OPC HDA clients to access historical data stored in your databases using ODBC drivers.

With this OPC HDA Server, you can share your historical data with multiple third party applications for reporting and analysis purposes. You can also synchronize between your ODBC compliant databases and other historians.

The OPC HDA Server introduces standard OPC HDA interfaces for relational databases. Thus, you can deploy and benefit from open architectures.

This OPC HDA Server is a featured component of the OPC Driver for Databases.

6. OPC HDA Server for MySQL

Deploy an OPC HDA interface for MySQL databases using the OPC HDA Server for MySQL!

Looking for an easy way to provide OPC access for MySQL databases? Integration Objects’ OPC HDA Server for MySQL is the right solution for you. In fact, it provides your OPC HDA clients with full access to archived data in MySQL databases.

This OPC HDA Server offers a high level of connectivity. For example, you can easily deploy open architectures, integrate your MySQL databases with third party systems and synchronize between historians.

The OPC HDA Server is a feature component of the OPC Driver for Databases.

7. OPC DA Server for Wonderware Historian

Enable OPC for your Historian using OPC DA Server for Wonderware Historian!

OPC DA Server for Wonderware Historian is an OPC Server that communicates with InSQL databases. Thus, it provides OPC clients with real-time access to data collected from InSQL databases. Your OPC clients will be able to read as well as update the Historian’s data.

With this level of connectivity, you can have your historian’s data at your fingertips for reporting and analysis needs.

Moreover, this OPC DA Server is OPC certified. It is feature component of OPC Driver for Databases product.

Product Features

·Multiple, simultaneous connections to diverse Wonderware InSQL databases via ADO technology

·Graphical user interface, simple and easy to use for server/database configuration

·Full access to real-time data for any OPC DA compliant client

·Support of OPC DA synchronous and asynchronous read and write requests

·Automatic reconnection to database servers after network glitches

·Import of OPC Tags from CSV files

·Export of OPC Tags into CSV files

·Windows service capability

8. OPC DA Server for OLEDB

Bring OPC access to your Enterprise databases using the OPC DA Server for OLEDB!

Integration Objects’ OPC DA Server for OLEDB is a plug-and-play OPC Server software. It supports OPC Data Access interfaces to provide OPC DA clients with real-time access to data collected from your databases. This OPC Server will enable OPC clients to read data as well as update the data within the database.

The OPC DA Server employs industry standards (OPC and OLEDB) in order to build open architectures. Moreover, it brings a standard way to share your production data from Enterprises databases with systems such as historians, SCADA or DCS.

OPC DA Server for OLEDB is a feature component of the OPC Driver for Databases.

9. OPC DA Server for ODBC

Bridge between enterprises databases and OPC using the OPC DA Server for ODBC!

Integration Objects’ OPC DA Server for ODBC is a plug and play OPC Server software. It provides your OPC DA clients with access real-time data stored in your databases via ODBC connector.

The ODBC OPC Server introduces standard OPC DA interfaces for relational databases. Thus, it allows you to set up a bridge between the enterprise databases and SCADA and DCS systems. Users will be able to transfer SQL, Oracle, MySQL data to OPC based systems within few clicks.

OPC DA Server for ODBC is a feature component of the OPC Driver for Databases.

10. OPC DA Server for MySQL

Bring an OPC Data Access to MySQL databases using the OPC DA Server for MySQL

Looking for an easy way to interface with your MySQL database? Integration Objects’ OPC DA Server for MySQL is the right solution for you. In fact, it provides your OPC DA client applications with real-time access to data collected from MySQL databases.

You can easily deploy open architectures and integrate your MySQL databases to third party systems with the level of connectivity offered by this OPC DA Server. Moreover, it establishes a standard way to integrate your Enterprise databases with other systems such as historians, SCADA, or HMI.

The OPC DA Server for MySQL is a feature component of the OPC Driver for Databases.

11. OPC DA Server for MS Access

Enable OPC for MS Access databases using the OPC DA Server for MS Access!

Integration Objects’ OPC DA Server for MS Access is a plug and play OPC Server software. In fact, it provides your OPC DA clients with real-time access to data collected from your Microsoft Access database.

Using ADO (Active Data Objects) technology, OPC DA clients can now read and update data from/to your MS Access database.

The OPC DA Server for MS Access allows you to have your real-time process data at your fingertips, ready to be processed and analyzed. Moreover, you can transfer MS Access data to systems such as SCADA, DCS or HMI within few easy steps.

OPC DA Server for MS Access is a feature component of the OPC Driver for Databases.

12. OPC DA Server for Oracle

Deploy OPC DA Server for Oracle and have an OPC interface for Oracle!

Integration Objects’ OPC DA Server for Oracle is a plug and play OPC Server. It enables OPC DA clients to interface with any Oracle database connected to your network.

The OPC DA Server for Oracle reads data from Oracle databases using the Active Data Objects (ADO) technology. It can also update the data records using the same link.

With a few clicks, you can access and share data stored in your Oracle database for analysis and troubleshooting purposes. You can also use this standard OPC DA interface to synchronize data between your Oracle database and other historians, SCADA, or DCS available in your organization.

By adhering to industry standards such as OPC and ADO, this server allows you to build open architectures and ensure interoperability between your systems.

OPC DA Server for Oracle is a feature component of the OPC Driver for Databases.

13. OPC DA Server for Microsoft SQL Server

Enable SQL to OPC transfer via the OPC DA Server for Microsoft SQL Server!

OPC DA Server for Microsoft SQL Server is a plug and play OPC Server. It enables your OPC DA Clients to communicate with SQL databases.

This OPC DA server reads and updates data from/to the databases via the ADO (Active Data Objects) technology. Consequently, you can easily access and analyze the data stored in your SQL database.

The OPC DA Server for SQL is the bridge that you have been looking for to link your Enterprise databases with your Control systems, such as SCADA, DCS or HMI. In fact, it will allow users to easily and in real-time transfer their SQL data to OPC based systems.

OPC DA Server for Microsoft SQL Server is a feature component of the OPC Driver for Databases.

14. OPC Server for ODBC

Looking for a way to connect your database to OPC? The OPC Server for ODBC is the right solution for you.

Integration Objects’ OPC Server for ODBC is a feature component of OPC Driver for Databases. This is a plug and play OPC Server software. It allows your OPC DA and OPC HDA client software to access real-time and historical data stored in your databases using ODBC technology.

Using this OPC Server, you will be able to share your historical raw and aggregated data with multiple third party applications for reporting and analysis purposes. You will also be able to synchronize the data of your ODBC compliant databases with other historians.

The OPC Server introduces standard OPC DA and HDA interfaces for relational databases. Thus, it allows you to deploy and benefit from open architectures.

Product Features

·Multiple simultaneous connections to diverse databases via ODBC

·Sophisticated graphical user interface, simple and easy to use for server/database configuration

·Full access to real-time data for any OPC DA Client

·Support of OPC DA synchronous/asynchronous read and write requests

·Full access to historical data for any OPC HDA Client

Compliant with OPC HDA Clients requesting synchronous and asynchronous reads for:

·Raw data

·Data at time

·Processed data (such as interpolative, minimum, maximum, average, range and total aggregates)

·Modified data

·Item attribute

Compliant with OPC HDA Clients requesting synchronous and asynchronous updates to:

·Insert / Replace item values

·Delete Raw

·Delete at time

·Automatic reconnection to database servers when the connection is lost

·Windows Service capability

·Log event display and archiving

15. OPC Server for MySQL

Looking for an easy way to interface with MySQL databases? OPC Server for MySQL is the right solution for you.

Integration Objects’ OPC Server for MySQL is a feature component of OPC Driver for Databases. This plug and play OPC Server software provides your OPC DA and OPC HDA clients with full access to the data stored in MySQL databases. This full access can be for real-time data or historical data.

This OPC Server easily integrates MySQL databases with OPC based systems. Thus, it can also be used to synchronize data between historians.

Moreover, the OPC Server includes a graphical user interface to configure their databases connections and tables within few clicks.

Product Features

·Simultaneous connections to multiple MySQL databases

·Easy to use graphical user interface server and database configuration

·Full access to real-time data for any OPC DA compliant client

·Support of OPC DA synchronous and asynchronous read and write requests

·Full access to historical data for any OPC HDA compliant client

·Support of OPC HDA synchronous and asynchronous read requests for raw data, data at time, processed data (such as interpolative, minimum, maximum, average, range and total aggregates), modified data and item attribute

·Support of OPC HDA synchronous and asynchronous update requests for insert / replace item values, delete raw and delete at time

·Automatic reconnection to database servers after network glitches

·Import of OPC Tags from CSV files

·Export of OPC Tags into CSV files

·Windows service capability

16. OPC Driver for Databases

Connect OPC clients to your databases via the OPC Driver for Databases

Looking for an easy way to pull data from your database? Frustrated by the lack of synchronization between your historians? The OPC Driver for Databases is the right solution for you. In fact, it is a plug and play OPC Server for databases. It provides OPC clients with full access to the data stored in your relational databases and supports OPC real-time data access and historical data access.

This OPC server integrates with Microsoft SQL Server, Oracle, Microsoft Access, MySQL and Wonderware Historian. Moreover, it can integrate with any other database via OLEDB or ODBC drivers.

Users can benefit from an intuitive and graphical configuration environment to easily set up their databases connections and tables mapping.

This OPC driver for databases is the bridge that you have been looking for to establish an OPC link between your enterprise databases and control systems such as SCADA, DCS, HMI or historians. With this OPC link, users will be able to transfer SQL, Oracle or MySQL data to OPC based systems. The transferred data can be raw data or processed data using aggregations such as interpolation, minimum, maximum, average, range and total.

17. OPC Server for Modbus

Connect your Modbus devices into one single OPC Server for Modbus!

The OPC Server for Modbus communicates with a wide range of devices supporting the Modbus TCP and Serial protocols. These devices include RTU, DCS, PLC, etc. Indeed, the server connects to multiple devices using Modbus TCP and Serial protocols with a few clicks. This OPC Modbus server supports standard OPC Data Access specifications.

The Modbus OPC Server provides an intuitive user interface to configure reliable Modbus connections and OPC tags. Then, OPC DA clients, such as Historians, HMI, and SCADA, can easily connect to the OPC Server and exchange real-time data with multiple devices.

Moreover, this OPC Server has been successfully compliance tested with the OPC DA standard specification.

Product Features

·Support multiple OPC DA Client connections

·Tag configuration per blocks

·Support of multiple Modbus TCP and serial devices connections

·Automatic reconnection to the configured Modbus TCP and serial devices after network glitches

·Zero-based and one-based addressing

·Byte and word order swapping

·Modicon bit ordering

·Windows service capability allowing automatic restart after the restart of the host machine

·Traceability of events using log files and viewer

18. OPC Server Enterprise

Use OPC Server Enterprise to access your historian data via OPC!

Integration Objects’ OPC Server Enterprise is a plug and play OPC server software. It provides OPC DA and HDA Clients with full access to both real-time and archived data collected from database systems. Using ADO technology, OPC Clients will be able to read and update data from/to several databases. For example, the supported databases include Oracle, Microsoft SQL Server, Wonderware Historian and Microsoft Access.

With this level of connectivity, you can have all of your real-time and historical process data at your fingertips. Then, you will be able to easily process and analyze your data.

The OPC Server Enterprise is a feature component of the OPC Driver for Databases.

19. OPC Server for Microsoft SQL

Deploy OPC Server for Microsoft SQL to easily share your data through OPC!

Integration Objects’ OPC Server for Microsoft SQL is a feature component of OPC Driver for Databases. This OPC Server software provides your OPC clients with full access to data collected from one or more SQL databases using ADO technology. Your OPC Clients will be able to read and update data from/to your SQL database. This OPC Server supports both OPC data access and historical data access.

With this level of connectivity, you can have all of your real-time and historical process data at your fingertips and ready to be processed and analyzed. For example, you can make your historical data available to third-party applications for analysis and reporting purposes. Or, you can use the OPC server to synchronize data between historians.

This OPC server for SQL is the bridge that you have been looking for to establish an OPC link between your enterprise databases and control systems such as SCADA, DCS, HMI or historians. With this OPC link, users will be able to transfer SQL data to OPC based systems. The transferred data can be real-time data, raw historical data or processed data using aggregations such as interpolation, minimum, maximum, average, range, and total.

20. OPC Server for Oracle

Use OPC Server for Oracle and easily deploy an OPC interface to your Oracle database!

The OPC Server for Oracle is a feature component of OPC Driver for Databases. This OPC Server software provides OPC clients with full access to real-time and historical data from your Oracle database. In fact, your OPC DA and HDA clients will be able to read and update data from/to your Oracle database.

Using OPC Server for Oracle, you can have all of your real-time and historical process data within few clicks.

Thus, you can make historical data available to third-party applications for reporting needs, or to historians for synchronization purposes.

21. OPC Server for MS Access

OPC Connectivity to MS Access made easy with OPC Server for MS Access!

Integration Objects’ OPC Server for MS Access is a feature component of OPC Driver for Databases. This is a PC-based OPC Server software. It provides OPC Clients with full access to real-time and archived data collected from your Microsoft Access database. In fact, it supports OPC DA and OPC HDA specifications. OPC Clients will be able to read and update data from/to your MS Access database.

Moreover, the OPC Server offers an intuitive user interface allowing you to have your process data at your fingertips.

Using this OPC Server, you can bridge the gap between MS Access and control systems such as SCADA, HMI, and DCS.

22. OPC Server for OLEDB

Use the OPC Server for OLEDB and access your database through OPC!

Integration Objects’ OPC Server for OLEDB a feature component of OPC Driver for Databases. This is a plug-and-play OPC Server software, which implements standard OPC DA and HDA interfaces. In fact, it provides OPC clients with full access to real-time and historical data archived in your databases. Using ADO, this OPC Server enables OPC clients to read data as well as update the data within the database.

The OLEDB OPC Server employs OPC and OLEDB standards in order to build open architectures and a standard way to share your archived production data with third-party applications. You can also use the OPC Server for OLEDB for synchronization purposes between historians.

23. OPC HDA Server Enterprise

Use OPC Server Enterprise to access your historian data through OPC HDA!

Integration Objects’ OPC HDA Server Enterprise is an OPC compliant Server that provides OPC HDA Clients with full access to data archived in the supported databases. In fact, OPC HDA Clients will be able to read and update data from/to ADO compliant databases. For example, these databases include Oracle, Microsoft SQL Server, Wonderware Historian and Microsoft Access.

Consequently, you can have all of your historical process data at your fingertips within a few clicks.

Product Features

·Multiple simultaneous connections to diverse databases via ADO technology

·Sophisticated graphical user interface, simple and easy to use for server/database configuration

·Full access to historical data for any OPC HDA Client

Compliant with OPC HDA Clients requesting synchronous and asynchronous reads for:

·Raw data Data at time

·Processed data (such as interpolative, minimum, maximum, average, range and total aggregates)

·Modified data

·Item attributes

·Automatic reconnection to database servers when the connection is lost

·Windows Service capability

·Log event display and archiving.

24. OPC HDA Server for Wonderware InSQL

The OPC HDA Server for Wonderware InSQL is OPC certified!

Integration Objects’ OPC HDA Server for Wonderware InSQL is an OPC plug and play connector for Wonderware Historians. It ensures easy access to your Wonderware historical data within a few clicks. In fact, this OPC Server software enables OPC HDA Clients to retrieve historical data from one or more Wonderware IndustrialSQL databases.

The OPC HDA Server for InSQL reads and updates historical data from/to the Wonderware historians via ADO technology.

With this standard OPC HDA interface, you can easily process and analyze your archived data. Moreover, it can be a useful tool for data synchronization purposes with other data historians such as OSIsoft PI.

The OPC HDA Server for Wonderware supports the following historian versions: 9.0, 10, 2012, 2012 R2, 2014, 2014 R2, 2017, 2017 Update 2 and 2017 Update 3.

25. OPC HDA Server for Microsoft SQL Server

OPC HDA interface for SQL made easy!

Integration Objects’ OPC HDA Server for Microsoft SQL Server is a PC-based software application that enables your OPC HDA Client to interface with any SQL database that is ADO compliant.

The OPC HDA server for Microsoft SQL Server reads and updates data from/to the historical databases via the ADO (Active Data Objects) technology so that you can easily process and analyze the historical data found in your SQL database.

26. OPC HDA Server for Oracle

Easily share your historical Oracle data via OPC HDA Server to Oracle!

Integration Objects’ OPC HDA Server for Oracle is a plug and play OPC Server, which enables your OPC HDA clients to interface with any Oracle database connected to your network.

The OPC HDA Server for Oracle reads historical data from Oracle databases using the Active Data Objects (ADO) technology. It can also updates the historical data records in the Oracle database using the same link.

With a few clicks, you will be able to access and share historical data stored in your Oracle database for further analysis and troubleshooting purposes. You can also use this standard OPC HDA interface in order to synchronize data between your Oracle database and other historians available in your organization.

By adhering to industry standards such as OPC and ADO, the OPC HDA Server for Oracle allows you to build open architectures and ensure interoperability between your systems.

27. OPC HDA Server for MS Access

Use OPC HDA Server for MS Access and share your historical data through a standard OPC interface!

The OPC HDA Server for MS Access is an OPC server software that shares your MS Access data through standard OPC HDA interface. Thus, it enables your OPC HDA clients to easily communicate with your Microsoft Access databases.

This OPC HDA server reads and updates data from/to the historical databases via the ADO (Active Data Objects) technology. Consequently, you can process and analyze the historical data stored in your Microsoft Access.

The MS Access OPC HDA Server is compliant with the OPC HDA standard specification. It is a feature component of the OPC Driver for Databases.

28. OPC Server Simulators

Easily simulate data and alarms using the OPC Server Simulators!

OPC Server Simulators are OPC server test tools. They allow end-users, developers and integrators to conduct tests with any third party OPC client software.

In fact, this plug and play OPC product offers you simulated real-time data, alarms and events messages as well as historical raw and processed data.

In particular, the OPC simulators package includes the advanced OPC simulator, which supports OPC DA and HDA specifications and allows you to:

·Configure your own tags and customize the OPC Server address space

·Specify your OPC data set simply by using CSV files

·Consequently, the advanced OPC simulator is very useful for history data playback purposes

Product Features

Three OPC Server Components: Advanced Simulator, OPC DA HDA Server and OPC A&E Server

OPC DA capabilities :

·Multiple OPC DA client connections management

·Support of OPC DA synchronous and asynchronous client read/write requests

·Real-time data simulation for a set of tags with different access rights

OPC HDA capabilities:

·Multiple OPC HDA client connections management

·Support of OPC HDA synchronous and asynchronous client read and update requests

·Historical raw and processed data simulation for a set of tags

OPC A&E capabilities:

·Multiple OPC A&E client connections management

·Multiple OPC A&E client event subscriptions management

·Real-time OPC alarms and events simulation

·Management of event conditions: enable ⁄ disable condition, activate ⁄ deactivate condition and acknowledge condition

·Log capabilities

·48 hours runtime operation

·Advanced Simulator Capabilities: The tags and data values to be simulated are easily configurable using CSV files. This tool can be very useful for simulation based on data history playback.

Quick Navigation;