Download - Egn_5623 Pp-ds Final
Production Planning and Production Planning and Detailed Scheduling (PP/DS) Detailed Scheduling (PP/DS)
in SCMin SCM
EGN 5623 Enterprise Systems Optimization EGN 5623 Enterprise Systems Optimization(Professional MSEM)(Professional MSEM)
Fall, 2011 Fall, 2011
Production Planning and Production Planning and Detailed Scheduling (PP/DS) Detailed Scheduling (PP/DS)
in SCM in SCM
Theories & ConceptsTheories & Concepts
EGN 5623 Enterprise Systems Optimization EGN 5623 Enterprise Systems Optimization(Professional MSEM)(Professional MSEM)
Fall, 2011 Fall, 2011
Production Process (review)Production Process (review)
Purposes for Production Planning: to meet the demand
to consider the resource capacities and the material availabilities
to improve utilisation of the resourcesto low set up timeto minimise the stock, andto minimise the work in process (WIP)to improve stability of the plan
Hierarchical Planning Framework Hierarchical Planning Framework (review)(review)
Long term-Material programs- Supplier selection- Cooperation
- Plant location- Production systems- Subcontractors
- Physical distribution structure- Transportation strategy
- Product program- Strategic sales planning
-- Personnel training-- Contracts-- Material Requirements Planning
-- Master production Scheduling-- Capacity planning -- Distribution planning -- Mid-term sales planning
Mid term
-- Personnel scheduling-- Material ordering
-- lot-sizing- operations scheduling- shop floor control
- Warehouse replenishment- Transportation planning -- Mid-term sales planning
Short term
EXECUTION
Information FeedbackFlow of goods
Process Chain for a Make-to Stock Process Chain for a Make-to Stock Production (review)Production (review)
PP/DS Scope in SNPPP/DS Scope in SNP
PP/DS Scope in SNPPP/DS Scope in SNP
SNP determines the sequence of the locations to be planned and starts with the location that only has inbound transportation lanes.
There is a demand at the customer location. The net requirements calculation before planning does not find any planned receipts to cover the demand at this location.
The product in a DC is procured externally. The system analyzes the possible transportation lanes and comes to the distribution center.
PP/DS Scope in SNPPP/DS Scope in SNPAssumingly, there are no planned receipts at the distribution center at the beginning of planning, SNP runs a check using the possible transportation lanes which arrive at the plant.
There are also no planned receipts available at the plant, and the product is produced in-house, so the SNP explodes PDS and creates planned orders for each finished product, which is decomposed into dependent demands for its components.
SNP turns the demand for components into purchase requisitions using possible transportation lanes and quota arrangements or priorities.
SNP Heuristics used for PPSNP Heuristics used for PPThree interactive PP planning methods:1.The location heuristic
• Only plans for selected products in a location on one level.
2.The network heuristic• Plans for all selected products in all locations on one
level. • SNP defines the sequence of locations internally.
3. The multilevel heuristic• Plans for selected products in all locations on all levels. • The location sequence is determined automatically for
each product. • Note that all components of the selected product are
planned. This corresponds to a multilevel cross-plant MRP run.
Basics of PP/DSBasics of PP/DSPP/DS prerequisites:
• Master data for products• Resources• PPM or PDS
Planned order life cycle (see Figure 15.1)• Creation of a planned order to balance demand
requirement• Conversion to a production order• Release of a production order• Confirmation (completion) of production order
Planned Order Life CyclePlanned Order Life Cycle
Planned Order PropertiesPlanned Order Properties
Properties of planned orders and production orders (Tables 15.1 and 15.2):
•Order Status & Category•Fixing indicators•Schedule status•Other flags reflecting order status
Order Status Order Status for for PlannedPlanned Orders Orders in PP/DSin PP/DS
Order Status Order Status for for ProductionProduction Orders in PP/DSOrders in PP/DS
PP/DS categoriesPP/DS categories
Indicator and Schedule StatusIndicator and Schedule Status
Indicator:•“PP Firmed” indicates either the output (target) or the input (source) is firmed for the date.
Schedule status types: Fully scheduled*Partly scheduledFully de-allocated
*”full scheduled” means all operations of an order are allocated with resources. “full de-allocated” means all operations are de-allocated with resources.
Scheduling Strategy ProfileScheduling Strategy Profile
Scheduling strategy profile defines the parameters as below: 1.Scheduling mode
• (e.g. find slot, insert operation, etc)2.Planning direction
• (backwards, forwards, or reverse)3.Priority restriction,
• regarding the alternative PPM mode 4.Operation validity
Scheduling Strategy ProfileScheduling Strategy ProfileA strategy profile contains one or more strategies which are processed in a given order until a solution is found.
• Schedule backwards or forwards, each with a finite number of time intervals.
• Prioritise resources for production, e.g. automated machines are loaded with a higher priority.
Note: Each used strategy profile must be flagged, in order to
re-create the schedule. (see table 15.4)
Strategy ProfilesStrategy Profiles
Cross-Plant PlanningCross-Plant Planning
Use Fixing Horizon to Ensure Use Fixing Horizon to Ensure Pegging RelationPegging Relation
Bottom-up HeuristicBottom-up HeuristicBottom-up heuristic reschedules dependent demands to the earliest receipt date first for the fix pegged elements. The dependent demands are sorted according to their requirement dates.
The bottom-up heuristic should be executed from the lowest level on which scheduling problems exists (see Figure 15.7).
For bottom-up heuristic, forward scheduling in profile strategy is suggested.
Bottom-up HeuristicBottom-up Heuristic
Alternative Resource Modelling Alternative Resource Modelling using Classificationusing Classification
Alternative Resources in Routing & Alternative Resources in Routing & PPM/PDS using Resource ClassificationPPM/PDS using Resource Classification
Mode LinkageMode Linkage
The mode linkage determines the dependencies between adjacent operations regarding modes.
By default, the mode linkage is “0” and no mode restrictions (see Figure 19.3).
If the duration of operation depends on the selected resource, alternative sequences must be maintained in SAP ERP (see Figure 19.4). The number of operations in the alternative sequence must be the same as in the original sequence.
Mode Linkage – no Mode Mode Linkage – no Mode RestrictionRestriction
Modelling of Production in a Modelling of Production in a Different LocationDifferent Location
Overlap for Orders: Continue FlowOverlap for Orders: Continue Flow
Continue flow is characterised by the output rate against the consumption rate. It is calculated by the duration of the operation, the quantity and the offset.
The total of consumed quantities has to be less than the total of the produced quantities (see Figure 19.7).
Modelling of Production at the Modelling of Production at the same locationsame location
Push ProductionPush Production
Push production is a functionality that is mostly required in the process industries, e.g. a semi-finished product (bulk) is created with fixed or minimum lot sizes and needs to be processed further due to technical or storage capacity issue.
Push production functionality provides a list of products that have the bulk as input and allows creating orders for these interactively (see Figure 19.13).
Push ProductionPush Production
Production Planning and Production Planning and Detailed Scheduling (PP/DS) Detailed Scheduling (PP/DS)
in SCM in SCM
SAP Implementation SAP Implementation
EGN 5623 Enterprise Systems Optimization EGN 5623 Enterprise Systems Optimization(Professional MSEM)(Professional MSEM)
Fall, 2011 Fall, 2011
SAP SCM ModulesSAP SCM Modules
THEORY AND PRACTICE OF ADVANCED PLANNER AND OPTIMIZER IN SUPPLY CHAIN DOMAIN by Sam Bansal
SCM Product View (Elements)SCM Product View (Elements)
APO – Production Planning – Interactive Production Planning – APO – Production Planning – Interactive Production Planning – Product View (APO/RRP3) Product View (APO/RRP3)
SCM Product View (Quantities)SCM Product View (Quantities)
APO – Production Planning – Interactive Production Planning – APO – Production Planning – Interactive Production Planning – Product View (APO/RRP3) Product View (APO/RRP3)
SCM Product View (Semi-finished SCM Product View (Semi-finished Product)Product)
SCM Product View (Raw Materials)SCM Product View (Raw Materials)
SCM Receipt View SCM Receipt View
APO – Production Planning – Interactive Production Planning – APO – Production Planning – Interactive Production Planning – Receipt View (APO/RRP4) Receipt View (APO/RRP4)
SCM Requirement View SCM Requirement View
APO – Production Planning – Interactive Production Planning – APO – Production Planning – Interactive Production Planning – Requirement View (APO/RRP1) Requirement View (APO/RRP1)
SCM Product OverviewSCM Product Overview
APO – Production Planning – Interactive Production Planning – APO – Production Planning – Interactive Production Planning – Product Overview (APO/POV1) Product Overview (APO/POV1)
SCM Reporting InterfaceSCM Reporting Interface
APO – Production Planning – Interactive Production Planning – APO – Production Planning – Interactive Production Planning – Product Overview (APO/POV1) Product Overview (APO/POV1)
SCM Reporting (Order List)SCM Reporting (Order List)
APO – Production Planning – Reporting– Order and Resource APO – Production Planning – Reporting– Order and Resource Reporting (APO/CDPS_REPT) Reporting (APO/CDPS_REPT)
SCM Reporting (Production SCM Reporting (Production Overview)Overview)
APO – Production Planning – Reporting– Order and Resource APO – Production Planning – Reporting– Order and Resource Reporting (APO/CDPS_REPT) Reporting (APO/CDPS_REPT)
SCM Reporting (Resource SCM Reporting (Resource Utilization)Utilization)
APO – Production Planning – Reporting– Order and Resource APO – Production Planning – Reporting– Order and Resource Reporting (APO/CDPS_REPT) Reporting (APO/CDPS_REPT)
SCM Production List (Interface)SCM Production List (Interface)
APO – Production Planning – Reporting– Production List APO – Production Planning – Reporting– Production List (APO/PPL1) (APO/PPL1)
SCM Production ListSCM Production List
APO – Production Planning – Reporting– Production List APO – Production Planning – Reporting– Production List (APO/PPL1) (APO/PPL1)
SCM Definition of Key Figures for SCM Definition of Key Figures for Plan MonitorPlan Monitor
APO – Supply Chain Monitoring– Current Settings– Define Current APO – Supply Chain Monitoring– Current Settings– Define Current Key Figure Schema (APO/PMONDEF) Key Figure Schema (APO/PMONDEF)
SCM Supply Chain CockpitSCM Supply Chain Cockpit
APO – Supply Chain Monitoring– Supply Chain Cockpit APO – Supply Chain Monitoring– Supply Chain Cockpit (APO/SCC02) (APO/SCC02)
Exercises:Exercises:Module 10: Supply Network Planning (SNP) - (Section 3)
10.5 Supply Network Planning Heuristic10.5.6 Location heuristic for multiple materials on multiple levels10.5.7 Run SNP heuristic – network at the plant level10.5.8 Run SNP heuristic – multilevel at the plant level 10.5.9 Review Production Plan in Product view10.5.10 Network planning with heuristic10.5.11 Network plan with multilevel heuristic10.5.12 The planning board
10.6 Check the results in SAP ERP