1. What is the systems development life cycle?
A system development life cycle is project managements well organized step-by-step cycle of stages for developing information systems project. (Haag, (n.d.), pg. 160)
2. How do the four implementation methods differ?
There are four implementation methods which are parallel implementation, plunge implementation, pilot implementation and phased implementation. Parallel implementation implements both the new and old systems running alongside one another using both systems until the new one functions properly. The plunge method discards the old method entirely starting fresh with the new system. The pilot implementation starts the project with a small group of people engaged …show more content…
What are the advantages of selfsourcing?
The advantages of selfsourcing includes improving requirements determination, increasing end user participation and sense of ownership as well as increasing the speed of systems development and reducing the invisible backlog. (Haag, (n.d.), pg. 172-173)
5. What is the role of a service level agreement (SLA) in outsourcing?
A service level agreement is a contracted agreement between two parties. In outsourcing it can define the work to be provided, the time in which it should be completed, the planned price and the measures to be used in the success of the systems development effort. (Haag, (n.d.), pg. 182).
SHORT-ANSWER QUESTIONS – Chapter 7
6. How have ERP systems evolved over the last 30 years?
Starting in the 1970's, the ERP systems was a basic material planning system carried out through the Materials Requirement Planning (MRP) system. It then moved to the next generation of the system which was introduced in the early 1980s under the name Manufacturing Resources Planning or MRPII. At this level capabilities such as decision and executive support were integrated. In the 1990's more functions were added to include accounting and financial functions. The ERP system is still currently referred to as MRPII. "During the last few years, the functional perimeter of ERPII systems has begun an expansion into its adjacent markets, such as supply chain management (SCM), customer relationship management …show more content…
Also, a decentralized "infrastructure generally prevents users from easily combining processing power or even comparing information between various information systems" and a centralized infrastructure is easier to run for most but not all. (Haag, (n.d.), pgs. 202-203)
8. What are the four types of a tiered infrastructure?
The four types of tiered infrastructure are presentation, application, data, and business logic. (Haag, (n.d.), pg. 204-205)
9. What is a business continuity plan?
A Business continuity planning (BCP) is best defined as, "a rigorous and well-informed organizational methodology for developing a business continuity plan, a step-by-step guideline defining how the organization will recover from a disaster or extended disruption of its business processes" (Haag, (n.d.), pg. 211).
10. Why do organizations implement a disaster recovery plan before testing it?
An organization does not implement a disaster recovery plan prior to testing it because there is no way to test it until the plan is implemented. (Haag, (n.d.), pg. 213)
A system development life cycle is project managements well organized step-by-step cycle of stages for developing information systems project. (Haag, (n.d.), pg. 160)
2. How do the four implementation methods differ?
There are four implementation methods which are parallel implementation, plunge implementation, pilot implementation and phased implementation. Parallel implementation implements both the new and old systems running alongside one another using both systems until the new one functions properly. The plunge method discards the old method entirely starting fresh with the new system. The pilot implementation starts the project with a small group of people engaged …show more content…
What are the advantages of selfsourcing?
The advantages of selfsourcing includes improving requirements determination, increasing end user participation and sense of ownership as well as increasing the speed of systems development and reducing the invisible backlog. (Haag, (n.d.), pg. 172-173)
5. What is the role of a service level agreement (SLA) in outsourcing?
A service level agreement is a contracted agreement between two parties. In outsourcing it can define the work to be provided, the time in which it should be completed, the planned price and the measures to be used in the success of the systems development effort. (Haag, (n.d.), pg. 182).
SHORT-ANSWER QUESTIONS – Chapter 7
6. How have ERP systems evolved over the last 30 years?
Starting in the 1970's, the ERP systems was a basic material planning system carried out through the Materials Requirement Planning (MRP) system. It then moved to the next generation of the system which was introduced in the early 1980s under the name Manufacturing Resources Planning or MRPII. At this level capabilities such as decision and executive support were integrated. In the 1990's more functions were added to include accounting and financial functions. The ERP system is still currently referred to as MRPII. "During the last few years, the functional perimeter of ERPII systems has begun an expansion into its adjacent markets, such as supply chain management (SCM), customer relationship management …show more content…
Also, a decentralized "infrastructure generally prevents users from easily combining processing power or even comparing information between various information systems" and a centralized infrastructure is easier to run for most but not all. (Haag, (n.d.), pgs. 202-203)
8. What are the four types of a tiered infrastructure?
The four types of tiered infrastructure are presentation, application, data, and business logic. (Haag, (n.d.), pg. 204-205)
9. What is a business continuity plan?
A Business continuity planning (BCP) is best defined as, "a rigorous and well-informed organizational methodology for developing a business continuity plan, a step-by-step guideline defining how the organization will recover from a disaster or extended disruption of its business processes" (Haag, (n.d.), pg. 211).
10. Why do organizations implement a disaster recovery plan before testing it?
An organization does not implement a disaster recovery plan prior to testing it because there is no way to test it until the plan is implemented. (Haag, (n.d.), pg. 213)