Software maintenance is a part of Software Development Life Cycle. Its main purpose is to modify and update software application after delivery to correct faults and to improve performance. Software is a model of the real world. When the real world changes, the software requires alteration wherever possible.
Software maintenance is a vast activity which includes optimization, error correction, deletion of discarded features and enhancement of existing features. Since these changes are necessary, a mechanism must be created for estimation, controlling and making modifications. The essential part of software maintenance requires preparation of an accurate plan during the development cycle. Typically, maintenance takes up about 40-80% of the project cost, usually closer to the higher pole. Hence, a focus on maintenance definitely helps keep costs down.
>> The SM process includes a maintenance plan which contains software preparation, problem identification and find out about product configuration management.
>> The problem analysis process includes checking validity, examining it and coming up with a solution and finally getting all the required support to apply for modification.
>> The process acceptance by confirming the changes with the individual who raised the request.
>> The platform migration process, which is used if software is needed to be ported to another platform without any change in functionality.
>> Structure of Software Program
>> Programming Language
>> Dependence on external environment
>> Staff reliability and availability
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Computer hardware maintenance involves taking care of the computer’s physical components, such as its keyboard, hard drive and internal CD or DVD drives. Cleaning the computer, keeping its fans free from dust, and defragmenting its hard drives regularly are all parts of a computer hardware maintenance program.
Keep your system functioning smoothly by managing hard drive space, scanning for system errors and regularly defragmenting the hard drive. Virus protection is also important, as some viruses can interfere with computer hardware.
>> Hardware maintenance is the testing and cleaning of equipment.
>> Software maintenance is the updating of operating systems and application programs in order to add new functions and change data formats. It also includes fixing bugs and adapting the software to new hardware devices. See program maintenance.
>> Information system maintenance is the routine updating of databases, such as adding or deleting employees and customers, as well as changing credit limits and product prices. See information system.
>> Disk and file maintenance is the periodic reorganizing of disk files that have become fragmented due to continuous updating. See fragmentation and file system.
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A computer network technician is an IT professional employed by a business entity to help with the creation, maintenance, and troubleshooting of present and future computer network hardware and software products, in support of business operations. A network technician is responsible for the setup, maintenance, and upgrading of networks and resources and prepares presentations for educating management about the need for upgrading network resources.
Computer network technicians perform physical and investigative processes including technical support. Usually, experienced IT technicians specialize in a single area such as information systems, data recovery, network management, or system administration.
Networking Systems and consulting to our client base. Internet technologies are a major part of our solutions set, including firewalls, e-mail integration, web site development and various new technologies like Virtual Private Networks (VPN). We take the development of the Internet very seriously, and spend a lot of time keeping up with the industry players, large and small. It is our business to know who is providing the best in today’s communications technology, from equipment and software vendors, to Internet providers, and to data communications carriers such as phone companies and related industry providers.
>> The ability to install, configure, operate, repair, maintain, troubleshoot, and diagnose PCs, servers, network hardware, network software, and other peripheral equipment.
>>The ability to install, maintain, repair, and inspect network cabling and other hardware.
>> The ability to quickly respond with solutions to malfunctions, while making sure that the designated computers and network equipments stay functional.
>> Knowledge in troubleshooting, repairing, and problem-solving techniques.
>> Knowledge in network control programs, network management, and network architecture.