System Selection plan and proposal Prototyping

System selection plan

System selection means selecting the various hardware, software, and services that are needed for implanting the system. Before the system selection can be done, it is necessary to know the capabilities of required proposed system . The volumes to be processed need to be know. The level of Competence of the staff should be assessed. It should include the current requirements and what is required to expand the system.

For example one may need to have more storage if the volume of transactions goes up. Considerations like compatibility and interfacing should be clearly stated. Upgradability should also specified-such as a new process.

After the system requirements are understood, specification for the systems to be acquired and prepared. These are used to prepare a Request for proposal . The RFP is sent to the vendor from the vendor database or is used to advertise for bids from vendors. The RFP should clearly contain:

  • Complete system specification.
  • Related price, term, time frame for delivery, etc.
  • Requirements of training from other services from vendor for any of these to be specific as a part of the bid, or an enquiry to know the availability and prices.
  • Warranties and Contractual limitations.
  • Service agreements and penalty clauses if any.
  • Vendor information required such as
  • Reference sites
  • Location of service centers and strength of service staff
  • Financial service of vendor

The Role of prototyping in Analysis

Prototyping is a means that is being increasingly used to gather the requirement specifications from users.
This is found useful in a number of situations, like:

  • Where the user is unable to articulate the requirements.
  • User cannot visualize the systems he wants, specially new users who have no idea of what a system could look like.
  • When the environment is new and not fully understood by the users or analyst.
  • Where the requirements are expected to evolve. For example, a decision support system, where the users wants to have an idea of what the system can do come up with more requirements.
  • Where the uncertainty is high.

Frequently Asked Questions

Ans: It is a final report of the feasibility study about the findings and conclusion of the study. it should be possible to review report and take decision on the project based on it view more..
Ans: Feasibility studies are almost always conducted where large sums are at stake. Also called feasibility analysis. A feasibility study is conducted in order to determine the success and minimize the risks related to the project. When it becomes certain that the specific project could be carried out profitably view more..
Ans: There are various techniques to gather data and facts of system. some of them re as follows : Record view and Background reading Interviews  Questionnaires Group communication Presentation Site visiting Observation view more..
Ans: System selection means selecting the various hardware, software, and services that are needed for implanting the system. Before the system selection can be done, it is necessary to know the capabilities of required proposed system view more..
Ans: Costs fall into two categories. There are cost associated with developing the systems and there are costs associated with a operating a system. view more..
Ans: Quantitative measure of degree to which a system, component or process possesses a given attribute For ex. No. of errors found per person hours expended Cost and Effort Estimation : Boehm’s COCOMO model, Putnam’s SLIM Model & Albrecht’s function model. view more..
Ans: There are three such classes: Process are collection of software related activities. Products are any artifacts, deliverables or documents that result from a process activity view more..
Ans: A direct measure is obtained by applying measurement rules directly to the phenomenon of interest.For example, by using the specified counting rules, a software program’s “Line of Code” can be measured directly. and sofware reliabity is .... view more..
Ans: What Is Information Systems Analysis and Design? Information systems analysis and design is a method used by companies ranging from IBM to PepsiCo to Sony to create and maintain information systems that perform basic business functions such as keeping track of customer names and addresses, processing orders, and paying employees. The main goal of systems analysis and design is to improve organizational systems, typically through applying software that can help employees accomplish key business tasks more easily and efficiently. As a systems analyst, you will be at the center of developing this software. view more..
Ans: concurrency of components, lack of a global clock and independent failures of components and the ability to work well when the load or the number of users increases – failure handling, concurrency of components, transparency and providing quality of service view more..
Ans: the wide range of applications in use today, from relatively localized systems (as found, for example, in a car or aircraft) to globalscale systems involving millions of nodes, from data-centric services to processorintensive tasks, from systems built from very small and relatively primitive sensors to those incorporating powerful computational elements, from embedded systems to ones that support a sophisticated interactive user experience, and so on. view more..
Ans: The task of a web search engine is to index the entire contents of the World Wide Web, encompassing a wide range of information styles including web pages, multimedia sources and (scanned) books view more..
Ans: The growth of the World Wide Web as a repository of information and knowledge; the development of web search engines such as Google and Yahoo to search this vast repository view more..
Ans: The engineering of MMOGs represents a major challenge for distributed systems technologies, particularly because of the need for fast response times to preserve the user experience of the game. view more..
Ans: a very different style of underlying architecture from the styles mentioned above (for example client-server), and such systems typically employ what is known as distributed event-based systems. view more..
Ans: the emergence of ubiquitous computing coupled with the desire to support user mobility in distributed systems view more..
Ans: The Internet is also a very large distributed system. It enables users, wherever they are, to make use of services such as the World Wide Web, email and file transfer. (Indeed, the Web is sometimes incorrectly equated with the Internet.) view more..
Ans: Technological advances in device miniaturization and wireless networking have led increasingly to the integration of small and portable computing devices into distributed systems. view more..

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