Usability of Softwares

Usability of any system or product is an important part of the game.

In softwares the usability consideration plays very critical role. It is very important step in SDLC i.e. Software Development Life Cycle.

Generally usability can be...

1) Usability from quality point of view

2) Usability from process point of view which has been used to manufacture it, and has resultant effect on it

Usability involves a lot of things. like

Usability engineering

Systematic listing of expectations

Understanding user behaviour and expectation pattern

Communicating user needs

Talking with User Groups (say user entities of website)

Scenarios (Talking about scenarios in diff cases)

Task Lists (What users want to achieve – SRS – going through SRS / HTML demo with end user)

SCADA

SCADA is Supervisory Control And Data Acquisition.

SCADA solutions or systems are widely used in industries for Automation and control systems, gathering systematic data, stats etc.

This data is generally brought on a centralised server from machines etc.. Where various software analyze the data and represent in MIS way.

SCADA is used for various

1) Industrial Production processes

2) MOnitoring processes

3) Control processes

4) Electrical power and transmission etc

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example:

Scada can be used to gather the power usage from various furnaces, big machines etc.. and it will be collected at centralised server. Here the software analyses and shows the trend of power consumption wrt production, wrt time slots etc.

What is CMMI or CMM

Capability Maturity Model^® Integration (CMMI) is a process improvement approach which provides organizations with the essential elements of effective processes.

It can be used to guide process improvement across a project, a division, or an entire organization. CMMI helps integrate traditionally separate organizational functions, set process improvement goals and priorities, provide guidance for quality processes, and provide a point of reference for appraising current processes.

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One can guess that a company who is CMMI level 2 or 3 or 5, adheres to some processes as specified by SEI.

It means the results of the company are reproducible, processes are sustainable.

Microsoft has recently announced that Windows 7 now can be used for up to 120 days without providing a license or any product activation key.

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Although Microsoft generally gives a 30-day time limit for users to activate their copies of the company's operating system, for Windows they have come up with official 120 days timeline.

Microsoft allows users to install and run any version of Windows 7 for up to 30 days without requiring a product activation key, (25-character alphanumeric string) that makes the use of the copy legitimate.