Direct Changeover Benefits Very simple - one system finishes the other starts No resource waste – duplicating work Drawbacks Risky – if there are bugs/errors.

Slides:

Advertisements

Similar presentations

Processing New Herbarium Collections Using EMu The last bits of paper Nicole Tarnowsky.

Advertisements

Data Conversion Khoo Kay Vin.

Regression Methodology Einat Ravid. Regression Testing - Definition  The selective retesting of a hardware system that has been modified to ensure that.

Changeover Lecture 12 Change-Over Strategies for Implementation 1 BTEC HNC Systems Support Castle College 2007/8.

JUnit. What is unit testing? A unit is the smallest testable part of an application. A unit test automatically verifies the correctness of the unit. There.

Quick Review of May 1 material Concurrent Execution and Serializability –inconsistent concurrent schedules –transaction conflicts serializable == conflict.

Implementation.

Implementation. Software Implementation Tools The implementation of a system will require a range of software implementation tools –modelling (or CASE)

Phase Difference = Phase Difference = 0.05.

System Implementation

7/14/2015EECS 584, Fall MapReduce: Simplied Data Processing on Large Clusters Yunxing Dai, Huan Feng.

SYSTEM ANALYSIS AND DESIGN

Systems Analysis Chapter 8 P 94 to P 101

THE SYSTEMS LIFE CYCLE ANALYSE DESIGN IMPLEMENT MAINTENANCE IDENTIFY/INVESTIGATE.

Setup Reduction Module

Systems Life Cycle A summary of what needs to be done.

System Development Life Cycle

George Armanious 1.1 Systems Life Cycle The cycle involves design and implementation of systems. Includes: Software requirements Hardware requirements.

Design Completion A Major Milestone System is Presented to Users and Management for Approval.

Slide 1 Systems Analysis and Design Alan Dennis, Barbara Wixom, and David Tegarden Chapter 15: Deployment: Installation and Operations Copyright 2005 John.

BSBIMN501A QUEENSLAND INTERNATIONAL BUSINESS ACADEMY.

SYSTEMS ANALYSIS FORM 4 Included in this topic: Information Systems Systems Analysts System Life Cycle (incl. Case Study) Documentation.

Chapter 8: Systems analysis and design

NotesDuranceDescriptionTask Basic and advanced training throughout the project 15.4 – 15.6Reading android material and writing.

DISCUSS ANY FOUR APPROACHES TO SYSTEM CHANGEOVER

System Analysis (Part 2) The System Development Life Cycle Problem Selection and Feasibility Study.

PowerPoint Presentation for Dennis & Haley Wixom, Systems Analysis and Design, 2 nd Edition Copyright 2003 © John Wiley & Sons, Inc. All rights reserved.

Systems Life Cycle 1.Project Idenification 2. Initial Investigation 3. Feasibilty Study 4. Analysis 5. Design 6. Development and testing 7. Implementation.

Update on Selective Editing and Implications for Staff Skills International Trade Conference September 2008 Ken Smart.

© 2012 About Me Doing agile since 1999 Start ups / Enterprises Planigle - Consulting and Training Qcue – VP, Engineering.

PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.

OPERATIONS MANUAL Step 8 – Systems MUMS IN FRANCHISE.

From the colonies to now.  Most people made everything they needed with their hands.  They bought only a few things from stores. The rest of it they.

Systems Life Cycle A2 Module Heathcote Ch.38.

 System Development Life Cycle System Development Life Cycle  SDLC Phases SDLC Phases Phase 1: Preliminary Investigation Phase 2: Feasibility Study.

Starter. Objectives Recap key CPA items Define lean production Using two examples explain how CPA can be used to achieve Lean Production.

IS Analysis and Design. SDLC Systems Development Life Cycle Break problems into management review stages Control cost and time Works best with well understood.

Construction, Testing, Documentation, and Installation Chapters 15 and 16 Info 361: Systems Analysis and Design.

The Benefits & Drawbacks of Business Growth

System Conversion System Conversion is the process of changing from the old system to the new one. There are four methods of handling a systems conversion:

P3 - prepare a computer for installation/upgrade By Ridjauhn Ryan.

Methods of Installing a new computer-based system.

CSC321: Introduction to Neural Networks and Machine Learning Lecture 18 Learning Boltzmann Machines Geoffrey Hinton.

Fixing the Defect CEN4072 – Software Testing. From Defect to Failure How a defect becomes a failure: 1. The programmer creates a defect 2. The defect.

GCSE ICT Systems Analysis. Systems analysis Systems analysis is the application of analytical processes to the planning, design and implementation of.

A BRIEF LOOK AT THE COMPONENTS THAT MAKE UP THE SYSTEM LIFE CYCLE.

Chapter 10 Information Systems Development. Learning Objectives Upon successful completion of this chapter, you will be able to: Explain the overall process.

Observing the Current System Benefits Can see how the system actually works in practice Can ask people to explain what they are doing – to gain a clear.

A brief look at the components that make up the system life cycle.

1 The System life cycle 16 The system life cycle is a series of stages that are worked through during the development of a new information system. A lot.

IT 21103/ System Analysis & Design. Chapter 14 Testing, Documentation, Training Chapter 15 Conversion, Maintenance, Review.

PowerPoint Presentation for Dennis & Haley Wixom, Systems Analysis and Design Copyright 2000 © John Wiley & Sons, Inc. All rights reserved. Slide 1 Systems.

BUSS2 Operations: using technology in operations.

The information systems lifecycle Far more boring than you ever dreamed possible!

AQA ICT A2 Level © Nelson Thornes 2009 Section 7 Introducing large scale systems 1 Section 7: Introducing large scale systems Introducing Large Scale Systems.

Onsite crm for insurance companies

Design Completion A Major Milestone

Systems Life Cycle: Implementation

System Development Life Cycle (SDLC)

Systems Life Cycle: Implementation

Information Systems Development

Systems Analysis and Design

1.2 System Design Basics.

The Systems Life Cycle: Implementation

INFORMATION SYSTEMS PLAN

5 POINT PLAN THE SYSTEMS LIFE CYCLE ANALYSE DESIGN

Systems Development Lifecycle

Tolerance Tolerance is the amount of error that is allowed when manufacturing a product. Very small differences are allowed in products because different.

Economic Growth & PPF.

CONSOLIDATED JUDGING IN NORTHWEST FLORIDA

Presentation transcript:

Direct Changeover Benefits Very simple - one system finishes the other starts No resource waste – duplicating work Drawbacks Risky – if there are bugs/errors hidden in the new system there is no system to fall back to. Training issues – all staff must be absolutely 100% sure of how to use the new system from day 1 Old System New System

Phased Changeover Benefits Support – can be focused on just one small part of the system Bugs/ Errors - will be easier to find as only a small part of the system is introduced at a time Training – staff have less to learn in one go Drawbacks Using 2 systems – Par of the system will be new part will still be old Old System New System

Pilot Run Changeover ` Benefits Whole System– can be tested in just a few places. Not catastrophic if bugs/error found as original system still running in other locations Training / Support - can be focussed on smaller amount of staff Training – staff in the next phase can see the system in action in the first phased Drawbacks Overload – The system may be fine with just a few places using it but when further phases come on line it may not run so efficiently Old System New System

Parallel Changeover ` Benefits Backup –if bugs/errors are found and the new system fails there is the old system to fall back to Drawbacks Resource use – Everything is done twice so it takes twice the resources (staff, time ) Old System New System