Enterprise architecture Manufacturing operations management Information systems in industry ELEC-E8113

Transcription

1 Enterprise architecture Manufacturing operations management Information systems in industry ELEC-E8113

2 Contents Enterprise architecture (EA) Manufacturing operations management (MOM) Rationale of the lecture: In order to get a basis for understanding information systems in industry it is good to know all the relevant viewpoints to it. In order to really understand something one need to focus. We focus on MOM.

3 From the introduction lecture Enterprise architecture (EA) refers to a holistic approach for analyzing the information processing activities and information systems of an enterprise from several viewpoints and levels of abstraction Business processes are a very essential viewpoint in the EA (but only one of them) Manufacturing operations management (MOM) refers to the business processes particular in industrial companies performing production activities 3

4 Enterprise architecture The information processing activities, systems and organization can be modeled as an enterprise architecture (EA) EA outlines its target from several viewpoints and layers of abstraction. See the example. Business processes is a common starting point Information (EIA) and application (EAA) architecture are parts of EA 4

5 Enterprise architecture of an industrial company Manufacturing takes place in supply chains forming value networks In a supply chain core processes of an enterprise are plan, source, deliver (using ERP) and make (using MES) A single enterprise is often illustrated with a hierarchical model called automation, hierarchy In this model upper levels control lower levels 5

6 Y-CIM model of activities in a manufacturing company In this model core processes are called logistics and engineering Logistics consists of production planning (using ERP) and control Engineering consists of product development (using PDM) and implementation MOM (using MES) consists roughly of production control and product implementation After-sales services (using PLM) are not included in the model 6

7 Business process model (BPM) A set of interrelated activities that can create results to a customer from inputs using resources while being controlled One can model not only the actual activities but also actors, events, sequence of activity, communication, data and material flows, resources (e.g. information systems) and objectives of the processes Input Control Process Resource Result 7

8 Methods for modeling business processes Business processes are typically modeled with a few basic types of diagrams: data flow, workflow or sequence diagrams Currently the maybe most well known notation is BPMN (Business Process Model and Notation) Other notations include UML (Unified Modeling Language), ARIS (Architecture of Integrated Information Systems) 8

9 BPM example 9

10 UML examples 10

11 Modelling business process BPM is a model, an abstraction of reality of a selected scope based on somebody s understanding BPM is just one approach to modelling activity. There others as well BPM is done for a defined purpose, which is usually development of activities according to some business objectives BPM can be used for understanding, communication, definition and application development Don t get trapped into so-called analysis paralysis Note that existing and intended business processes are separate things Remember that BPM is just one viewpoint in the EA 11

12 Simplified example again: Customer order of manufacturing products The example presents mainly the functional viewpoint at the level of system in EA PLM The logistic and engineering processes are in this example Supplier ERP Customer Supply-chain and automation pyramid are there as well One could make a BPM of it in several different ways depending on the purpose MES Autom. 12

13 Simplified example again: Life-cycle of intelligent devices This example does not fit EA well because it describes an interenterprise situation The essential processes in this example are the after-sales services of the vendor not included in the Y-CIM model One could make a BPM of it in several different ways depending on the purpose ERP PLM Vendor Infosys. Devices Customer 13

14 Manufacturing operations management Located between ERP and automation in functional hierarchy Concerns about manufacturing, not so much about business Local scope (production site), not enterprise Shorter time span, data more realtime and more detailed than in ERP Interface to production process is mandatory Interfaces typically within the enterprise 14

15 Manufacturing operations management This is a model of MOM activities based on the ISA-95 standard The border between MOM and ERP vary in different companies Four different types of operations management: production, inventory, quality and maintenance 15

16 Operations management in general Generic model of an intermediate operation scheduling, execution, monitoring and analysis activity Operations are based on previously created plans that utilize resources Communicates with external activities at higher levels Executes operations on external systems at lower levels 16

17 Production operations management Typically the most important operations in discrete part manufacturing Starting from work orders from ERP and process plans from PLM Creation of operational commands for automation Recording response for reporting, analysis and traceability Varies in different industries 17

18 Inventory operations management Concerns about local inventory Connection to production operations management Connection to inventory management at enterprise level Guidance or creation of commands for material movements Recording of response for reporting, analysis and traceability Varies in different industries 18

19 Quality operations management Typically the most important operations in process industries Starting from existing quality testing plans Guiding manual and commanding automated quality test operations Recording response for reporting, analysis and traceability Varies in different industries 19

20 Maintenance operations management May also be (partly) an enterprise level or outsourced activity Starting often from maintenance schedule or requests Guidance for maintenance operations Recording response for reporting and analysis Varies depending on maintenance strategy 20

21 Manufacturing operations management The four different operations affect each other. This has to be noted when planning and executing various operations Production operations typically create need for inventory and quality operations Maintenance operations typically interrupt other operations 21

22 Manufacturing operations management In addition to management of different operations MOM includes a few complementing and supporting activities Management of abnormal situations is often an important and time consuming activity 22

23 Links and references ISA , Enterprise - Control System Integration, Part 1: Models and Terminology, ISA Standard, ISA , Enterprise - Control System Integration, Part 3: Activity Models of Manufacturing Operations Management, ISA Standard,

24 Homework 2 questions about ERP and PDM/PLM based on selected texts Deadline Answers to ilkka.seilonen@aalto.fi 24