• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Topic 8 - Development Methods

Extracts from this document...

Introduction

Topic 8 - Development Methods Linear methodology - systems development methodology where the project is divided into sequential phases where one phase is completed before the next one starts. Iterative methodology - attempts to solve a problem by finding successive approximations to the solution starting from an initial guess. Iteration means the act of repeating a process usually with the aim of approaching a desired goal or target or result. Each repetition of the process is also called iteration and the result of the last iteration is used as a starting point for the next iteration. System Investigation/Feasibility Project definition: Is identifying the problem that needs to be solved using ICT and then stating what the problem is in clear terms by writing a project definition. Aims & Objectives of the New System: Is the definition that will be stating aims and objectives of new system. These might include: * Being able to accurately predict delivery dates for customer orders. * Reducing number of input errors. * Reducing the number of part deliveries by having a much more efficient and accurate stock control system. ...read more.

Middle

Operational Testing - Is performed by end user on software which is being used in its normal operating environmental. User Testing - Allows the team of users to test the software or system. Installation and Conversion This is the stage where the completed and fully tested system is installed on operational equipment for real life use. Implementation will involve: * Installing hardware. * Installing software. * Conversion if previous data. * Training of all users. * Production of documentation and training guides to hep people understand the system. Review and Maintenance After installation and conversion stage as it is only then that users will find problems and shortcomings. Review will involve: * Checking that user requirements are still meet. * Assessment of how happy the user is of the new system. * Setting up a system review to make sure that user requirements is been meet. * Setting a help desk facility to help others who have problems. Maintenance will involve: * Altercations in the system , adding extra functions. * Any systems crashes to be investigated to find out the reasons for their occurrence. ...read more.

Conclusion

* In some projects will want to see a rough working of a working version in order to make comments or adjustments. * Offers simple, disciplined approach to developing system. * Each task is completed fully so problems are dealt with at the time, so no need to go back. * Bugs found early in software so costs are low to correct than if it was later into the development. Iterative Methodologies This is when the project is broken into different stages and undergoes a cyclic development process., this is when each stage is evaluated, until it is improved to meet developer and user requirements, this is then taken into account when completing other stages. * Each time a step is completed the project improves as it highlights the value learning. * It allows user involvement resulting in better solution. * User involvement causes problems with their day to day work. * Increased user involvement may increase features which will effect costs and timing. Linear method is appropriate when: * Where the project is large. * Pressure doesn't exist. * Has clear objectives and solutions. * Inexperienced. Iterative method is appropriate: * Project is based online. * Requirements are made unclear. * Experienced team. * Pressure is on the team. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Information Systems and Communication section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Information Systems and Communication essays

  1. Marked by a teacher

    Database Coursework on a Vehicle Rental System: Analysis

    5 star(s)

    the employees * If there are any unnecessary delays between the performance of various processes * The methods of working * The nature of the tasks being performed by staff * The frequency at which these tasks are performed * The interactions between the different staff members * The flow

  2. Marked by a teacher

    Ecommerce Case Study

    Another problem that cuckoo games may have is with downloadable or digital content such as game extension packs or membership etc. This is because it is possible for hackers and thieves to navigate themselves around servers in order to get the content without paying.

  1. Free essay

    ICT organisation project

    Footer = Borough Life - 10 - Spring 2009 Feedback from clients with suggestion for improvements All Pages - The page number is too large therefore not visible in the footer of the magazine, make slightly smaller to correct this.

  2. A2 ICT CouseWork

    Pass Qualitative Testing Specification Testing Pass/Fail Client Comment's Screenshot I want the text on the web-page to be laired out probably, so our customer's do not get bored or overwhelmed by the amount of text on the website, so I want you to lay text out into paragraphs or small

  1. Energy Conversion (EC) Systems

    Since these interactions result in energy transfers across the boundary, work and heat may be regarded as energy in transit. Although they have this in common, there are also important distinctions between them. Work is an interaction between two systems such that the sole effect of the action of one

  2. Analysis Tools

    It also shows clearly the process that happens 4. It shows the data stores that are used within the system. 5. It shows a clear flow of data and information. Disadvantages of data flow diagrams are simply that it will clearly not show what hardware and software is used.

  1. Database Analysis & Design

    This methodology includes construction of different prototypes and good developments. Stages within this methodology can be re-visited as many times as needed until the team feel the requirements have been met, as long as the project is completed within the deadline any stage can be worked on.

  2. ICT revision notes - IT project management

    Linear Development âThe idea is simple: each element of the design is fully completed before the next element is started Linear Methods âThese allow the development of a new system in an order or sequence. âStages of development have to be completed before the next stage can start.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work