MARKING SCHEME
EEMQ 5152 COMPUTER INTEGRATE MANUFACTURING
SECTION A: (COMPULSORY) AUGUST 2019 SERIES
QUESTION ONE [30 MARKS]
a) Differentiate between the following terms as used in CIM [6 Marks]
i. Design Capacity VS Capacity Utilization Rate
Design Capacity is the amount that a firm would like to produce under normal circumstances
and for which system was designed ½ ✓ while Capacity Utilization rate is the extent to which
a firm uses its capacity. ½ ✓
ii. Production Planning Vs Production Control
Production Planning is the systematic determination of the methods by which the product will
be manufactured and how it will be scheduled✓ while Production control is concerned with
determination of the necessary resources that will be employed to implement production plan
provided✓.
iii. Group Technology Vs FMS
Group technology is a manufacturing philosophy that is applied to increase production
efficiency by sorting a variety of parts having similarities of shape, dimension and/or process
route ✓.while FMS consists of a group of processing stations that are interconnected by means
of an automated material handling and storage systems, controlled by an integrated computer
system. ✓.
iv. Production Flow Analysis Vs Coding System
Production Flow Analysis is a method for identifying part families and associated machine
groupings that uses the information contained on production route sheets rather than on part
drawings½ ✓ while coding systems establishes the value of the parts on part features for easier
classification. ½ ✓
b) Discuss the major components of CIM using CIM wheel. [6 marks]
The Major Components are:
• Engineering design (CAD, CAM, CAE, GT).
• Manufacturing Planning and control.
• Factory automation
• General Business management.
Marketing: The need for a product is identified by the marketing division. The specifications
of the product, the projection of manufacturing quantities and the strategy for marketing the
product are also decided by the marketing department. Marketing also works out the
manufacturing costs to assess the economic viability of the product. ✓
Product Design: The design department of the company establishes the initial database for
production of a proposed product. In a CIM system this is accomplished through activities such
as geometric modeling and computer aided design while considering the product requirements
and concepts generated by the creativity of the design engineer. Configuration management is
an important activity in many designs. Complex designs are usually carried out by several teams
working simultaneously, located often in different parts of the world. The design process is
constrained by the costs that will be incurred in actual production and by the capabilities of the
available production equipment and processes. The design process creates the database required
to manufacture the part. ✓
1
, Planning: The planning department takes the database established by the design department
and enriches it with production data and information to produce a plan for the production of the
product. Planning involves several subsystems dealing with materials, facility, process, tools,
manpower, capacity, scheduling, outsourcing, assembly, inspection, logistics etc. In a CIM
system, this planning process should be constrained by the production costs and by the
production equipment and process capability, in order to generate an optimized plan. ✓
Purchase: The purchase departments is responsible for placing the purchase orders and follow
up, ensure quality in the production process of the vendor, receive the items, arrange for
inspection and supply the items to the stores or arrange timely delivery depending on the
production schedule for eventual supply to manufacture and assembly. ✓
Manufacturing Engineering: Manufacturing Engineering is the activity of carrying out the
production of the product, involving further enrichment of the database with performance data
and information about the production equipment and processes. In CIM, this requires activities
like CNC programming, simulation and computer aided scheduling of the production activity.
This should include online dynamic scheduling and control based on the real time performance
of the equipment and processes to assure continuous production activity. Often, the need to
meet fluctuating market demand requires the manufacturing system flexible and agile. ✓
Factory Automation Hardware: Factory automation equipment further enriches the database
with equipment and process data, resident either in the operator or the equipment to carry out
the production process. In CIM system this consists of computer-controlled process machinery
such as CNC machine tools, flexible manufacturing systems (FMS), Computer controlled
robots, material handling systems, computer-controlled assembly systems, flexibly automated
inspection systems and so on. ✓
Warehousing: Warehousing is the function involving storage and retrieval of raw materials,
components, finished goods as well as shipment of items. In today's complex outsourcing
scenario and the need for just-in-time supply of components and subsystems, logistics and
supply chain management assume great importance. ✓
Finance: Finance deals with the resources pertaining to money. Planning of investment,
working capital, and cash flow control, realization of receipts, accounting and allocation of
funds are the major tasks of the finance departments. ✓
Information Management: Information Management is perhaps one of the crucial tasks
in CIM. This involves master production scheduling, database management, communication,
manufacturing systems integration and management information systems. ✓
2
EEMQ 5152 COMPUTER INTEGRATE MANUFACTURING
SECTION A: (COMPULSORY) AUGUST 2019 SERIES
QUESTION ONE [30 MARKS]
a) Differentiate between the following terms as used in CIM [6 Marks]
i. Design Capacity VS Capacity Utilization Rate
Design Capacity is the amount that a firm would like to produce under normal circumstances
and for which system was designed ½ ✓ while Capacity Utilization rate is the extent to which
a firm uses its capacity. ½ ✓
ii. Production Planning Vs Production Control
Production Planning is the systematic determination of the methods by which the product will
be manufactured and how it will be scheduled✓ while Production control is concerned with
determination of the necessary resources that will be employed to implement production plan
provided✓.
iii. Group Technology Vs FMS
Group technology is a manufacturing philosophy that is applied to increase production
efficiency by sorting a variety of parts having similarities of shape, dimension and/or process
route ✓.while FMS consists of a group of processing stations that are interconnected by means
of an automated material handling and storage systems, controlled by an integrated computer
system. ✓.
iv. Production Flow Analysis Vs Coding System
Production Flow Analysis is a method for identifying part families and associated machine
groupings that uses the information contained on production route sheets rather than on part
drawings½ ✓ while coding systems establishes the value of the parts on part features for easier
classification. ½ ✓
b) Discuss the major components of CIM using CIM wheel. [6 marks]
The Major Components are:
• Engineering design (CAD, CAM, CAE, GT).
• Manufacturing Planning and control.
• Factory automation
• General Business management.
Marketing: The need for a product is identified by the marketing division. The specifications
of the product, the projection of manufacturing quantities and the strategy for marketing the
product are also decided by the marketing department. Marketing also works out the
manufacturing costs to assess the economic viability of the product. ✓
Product Design: The design department of the company establishes the initial database for
production of a proposed product. In a CIM system this is accomplished through activities such
as geometric modeling and computer aided design while considering the product requirements
and concepts generated by the creativity of the design engineer. Configuration management is
an important activity in many designs. Complex designs are usually carried out by several teams
working simultaneously, located often in different parts of the world. The design process is
constrained by the costs that will be incurred in actual production and by the capabilities of the
available production equipment and processes. The design process creates the database required
to manufacture the part. ✓
1
, Planning: The planning department takes the database established by the design department
and enriches it with production data and information to produce a plan for the production of the
product. Planning involves several subsystems dealing with materials, facility, process, tools,
manpower, capacity, scheduling, outsourcing, assembly, inspection, logistics etc. In a CIM
system, this planning process should be constrained by the production costs and by the
production equipment and process capability, in order to generate an optimized plan. ✓
Purchase: The purchase departments is responsible for placing the purchase orders and follow
up, ensure quality in the production process of the vendor, receive the items, arrange for
inspection and supply the items to the stores or arrange timely delivery depending on the
production schedule for eventual supply to manufacture and assembly. ✓
Manufacturing Engineering: Manufacturing Engineering is the activity of carrying out the
production of the product, involving further enrichment of the database with performance data
and information about the production equipment and processes. In CIM, this requires activities
like CNC programming, simulation and computer aided scheduling of the production activity.
This should include online dynamic scheduling and control based on the real time performance
of the equipment and processes to assure continuous production activity. Often, the need to
meet fluctuating market demand requires the manufacturing system flexible and agile. ✓
Factory Automation Hardware: Factory automation equipment further enriches the database
with equipment and process data, resident either in the operator or the equipment to carry out
the production process. In CIM system this consists of computer-controlled process machinery
such as CNC machine tools, flexible manufacturing systems (FMS), Computer controlled
robots, material handling systems, computer-controlled assembly systems, flexibly automated
inspection systems and so on. ✓
Warehousing: Warehousing is the function involving storage and retrieval of raw materials,
components, finished goods as well as shipment of items. In today's complex outsourcing
scenario and the need for just-in-time supply of components and subsystems, logistics and
supply chain management assume great importance. ✓
Finance: Finance deals with the resources pertaining to money. Planning of investment,
working capital, and cash flow control, realization of receipts, accounting and allocation of
funds are the major tasks of the finance departments. ✓
Information Management: Information Management is perhaps one of the crucial tasks
in CIM. This involves master production scheduling, database management, communication,
manufacturing systems integration and management information systems. ✓
2
