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What is an Information System
A set of interrelated components that collect, process, store, and distribute information
3 Dimensions of information system
Organization, Management, Technology
The 4 Activities of an IS (The loop)
Input → processing → Output → Feedback
IT Infrastructure
The shared technology resources that provide the platform for a firm’s specific information system application
Business Processes
The manner in which work is organized, coordinated, and focused to produce a valuable product or service
Organization Dimension include?
The hierarchy, functional specialties, business processes, culture, and political interest groups
Management Dimension include?
Setting organizational strategy, allocating resources, and providing leadership to create new products/services.
Technology Dimension Include?
Computer hardware, software, data management technology, and networking/telecommunications technology.
Operating system (OS)
System software that manages computer hardware and software resources (eg. windows, linux, macos)
Enterprise Resource Planning (ERP)
Systems that integrate core internal business processes into a single software system to improve coordination and decision making, Internal focus
Customer relationship management (CRM)
Systems used to manage relationships with customers, tracking internactions from marketing to sales and services, external focus
Supply Chain Management (SCM)
Systems that manage the flow of goods, data, and finances from the supplier to the manufacturer to the retailer
Business Intelligence (BI)
Tools for data analysis and reporting that turn massive amounts of data into actionable insights for managers
Linux best used for
Servers, cloud infrastructure, enterprise back end systems
Windows best used for
Corporate environments and office admin work due to high compatibility and user friendliness
Data Management
Software governing the organization of data on physical storage media (eg. SQL databases)
MACOS best used for
In creative and technology focused roles
ERP is best used for
complex cross department operations and data consistency and process standardization is crucial
CRM best used for
customer experience is a competitive priority, and sales and marketing teams need shared customer data
SCM best used for
Operations depend on complex supplier networks and inventory optimization is essential
BI best used for
The firm collects large volumes of data and decisions must be data driven, and performance monitoring and forecasting is important
Networking and telecommunications
Provides the connectivity and allows systems, employees, and locations to communicate
Internet platforms
Enable organizations to deliver services and applications over the internet
Levels of management information systems
Operational management
Middle Management
Senior management
Operational management focuses on
Day to day tasks, efficiency, and correctness
Middle management focuses on
Monitoring performances, controlling specific areas, making non routine decisions
What system does operational management use
Transaction processing systems (TPS)
What system does middle management use?
Decision support systems (DSS)
Senior management focuses on
Long term strategic goals and external environment
What system does senior management use
Executive support systems (ESS)
Transaction processing systems (TPS)
Systems that record the daily routine transactions necessary to conduct business (eg. payroll, shipping records)
Management information systems (MIS)
Systems that provide reports on the organizations current performance based on data from TPS
Decision support systems (DSS)
Systems that support non routine decision making using what if analysis
Executive support systems (ESS)
Systems designed for senior leaders to address strategic issues and long term trends
Business processes
The collection of activities required to produce a product or service
Organizational culture
The shared values, beliefs, and practices it guides technology adoption
Managers challenge for organizational culture
Move beyond the strategic choice to invest in technology and address the underlying beliefs that drive employee actions
What problem do managers face when implementing a new IS
It changes how departments interact, so disagreements over ownership or budget can lead to prolonged decision making and abandonment
Successful IS deployment is often a matter of
Environmental fit, managers must monitor external trends and ensure their internal systems are resilient
Structure of an organization
Dictates how information flows and how well processes are performed
Low cost leadership strategy
Uses IS to achieve the lowest operational costs and lowest prices ex. walmart
Product differentiation strategy
Uses IS to enable new products/services or greatly change the customer convenience ex. Nike/apple
Focus on market niche
Use IS to analyze data for a specific target market better than competitors
Customer and supplier intimacy
Uses IS to develop strong ties and loyalty ex. amazon
Primary
If the activity touches the physical product (making,moving selling)
Support
If the activity is about hiring, buying, or fixing
Enterprise resource planning (ERP)
A suite integrated software modules and a common centralized database that supports core internal business processes
The silo problem
When data is trapped in separate departments leading to inefficiency
What is the solution to the silo problem
ERP solves it by integrating data
Beyond just organization ERP provides
Business intelligence (BI) because all the data is one place
If your internal workflows are chatoic
An ERP will only automate chaos, must fix the business process first
When you should use ERP
Dataset jungle
Bad customer experience
Monthly close takes weeks
Inventory Blindness
Regulatory needs
Cloud ERP
The software runs on the providers servers and is accessed via a web browser
Local ERP
The software is installed on the company’s own local servers
Hybrid ERP
Some data stays on site for security while other functions are handled on the cloud
Supply chain management (SCM)
Systems that manage the flow of products, information, and finances among the network of suppliers, manufacturers and distributors
Goal of a SCM
To get the right amount of their products from their source to the point of consumption in the least amount of time at the lowest cost
Upstream supply chain
Organizations relationships with its suppliers, information systems here focus on procurement, supplier performance, tracking, and sourcing raw materials
Internal supply chain
MIS tools like ERP systems coordinate production schedules, quality control and internal inventory levels
Downstream supply chain
Focuses on the path to the customer systems manage distribution, warehouse logistics, and CRM to ensure the right product reaches the right buyer
Bullwhip effect
Small fluctuations in retail demand cause larger fluctuations in demand upstream
What is the cause and solution of the bullwhip effect
Lack of information sharing and communication between supply chain partners
solution: use SCM systems to share real time data
SCM Transforms data into actionable insights across 3 distinct levels
Strategic, Tactical, Operational
Strategic decisions (Long term)
High stakes decisions made by executives that define the shape and capability of the supply chain this includes;
Network design
Outsourcing vs Insourcing
Supplier partnerships
Tactical decisions (Medium term)
These decisions bridge the gap between high level strategy and daily work, often handled by middle management this includes;
Demand planning
Inventory Policy
Sourcing contracts
Operational decisions
Automatic decisions that keep the business running smoothly every hour this includes;
Routine optimization
Production scheduling
Automated reordering
Customer relationship management (CRM)
Systems that capture and integrate customer data from all over the organization to manage and analyze customer interactions
Operational CRM
Customer facing application ex. tools for sales force automation, call center
Analytical CRM
Applications that analyze customer data generated by operational CRM apps to improve business performance
Push based model (Build to Stock)
Production schedules are based on forecasts or best guesses of demand
Pull Based Model (Demand Driven)
Production is triggered by actual customer orders
Cross-Selling
Marketing complementary products to customers
Unsupervised machine learning
Identifies hidden patterns and structures in unlabeled data
Clustering
Aims at categorizing a set of data points into groups such that data points within the same group are similar to each other
Dimensionality reduction
Decrease a datasets features while preserving information
Used for feature engineering
Saves the cost of training, maintaining, BI functions
Supervised machine learning
Learns and identifies hidden patterns and structure using labeled data
2 Types of supervised machine learning tasks
Regression: Predicting actuals values
Classification: Predicting the category
Reinforcement learning
Aims at developing algorithms that can continuously observe environment and make decisions to achieve a long term optimal performance
Decision tree model
used for classification and regression tasks
Random Forest (RF)
an ensemble machine learning method that builds many decision trees during training and merges their results
Support Vector Machine (SVM)
Finds the optimal hyperplanes to separate data with maximizing the margin for better generalization
Artificial neural network (ANN)
A neural network is composed of hidden layers of interconnected units called neurons
ANN Philosophy
Any complex relationship between input and output can be mapped as a function represented by ANN’s as long as many non-linear activation functions and layers is introducted
Use recall when
You need safety first, it is better to have false positives than false negatives
Use precision when
You need cost efficiency