MIS CHAPTER 2

D) business process

activities

role

rectangles

B) circle having a narrow border

C) The name of the role is written at the top of the swimlane.

D) A particular role may be fulfilled by many people.

A) circle having a thick border

repository

D) Data flows

subprocess

D) The medium of data delivery is unimportant in a BPMN diagram.

Efficiency

B) An effective business process enables an organization to accomplish its strategy.

A) can take action

B) sets of instructions

procedure

data

D) hardware and people

automated

C) human side to the computer side

D) A process that uses a labor saving information system may not be efficient.

Data

data

data

C) accurate information

timely

D) It must be contextually relevant.

B) The timeliness of information can be measured against events.

D) department-level averages of revenue generation figures

B) Relevant

B) Information must hold an appropriate relationship between its cost and its value.

T

T

T

T

T

F

F

T

T.

T

T

F

T

T

T

F

F

T

T

F

T

F

T

F

T

F

T

T

T

T

F

T

F

F

T

T

T

T

T

T

F

T

F

A business process is a network of activities for accomplishing a business function. Activities are specific tasks that need to be accomplished as part of the process.

Swimlane format is a graphical arrangement in which all of the activities for a given role are shown in a single vertical lane. Each swimlane has activities, which are specific tasks that need to be accomplished as part of the process. A role is a subset of the activities in a business process that is performed by an actor, which is a person, group, department, organization, or information system. The name of the role is written at the top of a swimlane, not people's names. This is because a given role may be fulfilled by many people, or the organization may change the people who are assigned to a given role.

: A repository is a collection of data that is stored within a business process. A repository can be a cardboard box, a notebook, a list, an Excel spreadsheet, a database, or even a collection of databases. For the purpose of documenting a business process, the particular medium in which repository data is stored is unimportant

According to the business process modeling notation (BPMN), the labeled dashed lines are called data flows. They represent the movement of data from one activity to another. The data can be delivered via email, text message, over the phone, by fax, or by some other means. In a BPMN diagram, the medium of the data delivery is also unimportant.

The five components of an information system are hardware, software, data, procedures, and people. They are arranged symmetrically in the framework. The outermost components, hardware and people, are both actors; they take action. The software and procedure components are both sets of instructions: Software is instructions for hardware, and procedures are instructions for people. Finally, data is the bridge between the computer side on the left and the human side on the right. When an activity in a business process is handled by an automated system, it means that work formerly done by people following procedures has been moved so that computers now do that work by following instructions in software. Thus, the automation of a process activity consists of moving work from the right-hand side of the five-component IS framework to the left.

In order to select a vendor, a buyer has to gather data about vendors and products, make analyses of costs and margins, and store the results of those analyses. If an information system (IS) is not used to store these results, accessing past records and results will require a manual search. An IS makes the process of finding reliable data and reports faster and more reliable, improving the efficiency and quality of the business process.

The most common definition of information is that information is knowledge derived from data.

Data is defined as recorded facts or figures. The facts that an employee of an organization earns $17.50 per hour and that another employee of the same organization earns $25.00 per hour are examples of data.

Good information is accurate information, which is based on correct and complete data, and it has been processed correctly as expected. Accuracy is crucial; business professionals must be able to rely on the results of their information systems. The IS function can develop a bad reputation in an organization if a system is known to produce inaccurate data. In such a case, the information system becomes a waste of time and money as users develop work-arounds to avoid the inaccurate data.

: Good information requires that data be available in time for its intended use. A monthly report that arrives 6 weeks late is most likely useless. In such a case, the data has arrived long after the decisions that needed that information have been made. An information system that sends a poor customer credit report after the goods have been shipped is unhelpful and frustrating. Notice that timeliness can be measured against a calendar (6 weeks late) or against events (for example, before shipping).

A person who works in marketing needs to be able to assess the effectiveness of new online ad programs. He wants an information system that will not only deliver ads over the Web, but one that will also enable him to determine how frequently customers click on those ads. In this case, determining click ratios in near real time will be very expensive; saving the data in a batch and processing it some hours later will be much easier and cheaper. If the user can manage with data that is a day or two old, the system will be easier and cheaper to implement.

Relevant data is data that directly pertains to both the context and the subject. Considering context, a CEO needs data that is summarized to an appropriate level for his job. A list of the hourly wage of every employee in the company is unlikely to be useful. More likely, the CEO needs average wage information by department or division. A list of all employee wages is irrelevant in this context. Data should also be relevant to the subject at hand. If data about short-term interest rates is required to find a possible line of credit, then a report that shows 15-year mortgage interest rates is irrelevant.

: Just barely sufficient data is data that is sufficient for the purpose for which it is generated, but just barely so. We live in an information age; one of the critical decisions that each of us has to make each day is what data to ignore. The higher one rises into management, the more data one will be given, and because there is only so much time, the more data one will need to ignore. So data should be sufficient, but just barely.

Data is not free. There are costs for developing an information system, costs of operating and maintaining that system, and costs of time and salary for reading and processing the data the system produces. For data to be worth its cost, an appropriate relationship must exist between the cost of data and its value.