Decision Atlas is a study map for supply chain. It matters for readers who want to learn those choices one decision at a time. You click through decisions the way you would ride a transit map.
The homepage headline is "Learn supply chain one decision at a time." This is an independent review from Classy AI News.
It is based on what that site publishes on its homepage and its about page. Classy AI News is a separate news site. We are not Decision Atlas.
More from this desk is on the [Supply Chain section](/category/supply-chain).
What it covers
The homepage describes the map as a transit map. It has 11 lines and 105 stops. They are grouped by how far ahead a decision looks.
The lines named on that page are Foundations, Analytics & AI, Demand, Inventory, Supply & production, Network design, Sourcing & procurement, Logistics & transportation, Orders & service, Risk, cost and sustainability, and SAP in practice. SAP is business software many large firms use to run their records.
The page groups the work into horizons. Plan looks months ahead. That covers demand, inventory, and supply and production.
Design looks years ahead. That covers network design, and sourcing and procurement. Run covers days to weeks.
That covers logistics and transportation, and orders and service. Protect is described as always on. That covers risk, cost, and sustainability.
Foundations and Analytics & AI are the starter lines. SAP in practice is the line about how the ideas run inside an ERP. An ERP is the software that holds a company's main records.
The homepage eyebrow calls this "Supply chain, mapped for placements." The about page is written by Dhiraj Badshe. He describes Decision Atlas as the study guide he wanted while preparing for supply chain interviews.
Topics are framed as decisions.
Examples include how much stock to hold, where a warehouse should go, and why a forecast keeps missing.
Some stops are marked Draft. The about page defines Draft as written but still being checked. Checked means the author says he has verified the numbers and claims on that page against the sources listed there.
Classy AI News did not repeat that check. We did not read all 105 stops for this review.
Three depths
The homepage says every stop can be read at three depths.
- Gist. The idea in plain words, with an everyday example, in about two minutes.
- How it works. Formulas, a worked example, and a live lab you can play with.
- Deep dive. Edge cases, traps, and how companies actually do it.
The about page uses the same three names. It adds a note on the middle layer. A live lab appears where it helps.
Treat the homepage as the promise of the three depths. Treat the about page as the note that a lab is not claimed for every stop.
Interview kits
The homepage says every stop ends with an interview kit. The about page says that kit is a 30 second answer plus practice questions with model answers. That is the site's description of the kit.
This review does not grade the answers.
Prep paths
Under "Prep paths," the homepage lists four role tracks. It says each path is eight stops, in the order the ideas build on each other.
- Supply chain analytics and planning, for planning software firms and analytics teams.
- Supply chain consulting, for strategy and operations consulting.
- SAP functional (MM, SD, PP), for SAP consulting and ERP roles. MM, SD, and PP are SAP areas for materials, sales, and production planning.
- Operations and manufacturing, for plant, FMCG, and manufacturing roles. FMCG means fast moving consumer goods, such as packaged food and daily household products.
The stops on those paths come from the same map. They are a reading order. Finishing a path is not a certificate.
Who it is for
The site is aimed at people preparing for supply chain placements and interviews. It is also for readers who want one decision explained at a depth they choose. The four paths above are the audiences it names.
It is a learning map. It is not a news wire, and it is not a live control tower.
The about page says Decision Atlas is an independent project. It is not affiliated with any company or software vendor mentioned on the site. That includes the SAP line.
The pages explain how ideas show up in SAP. The author says the project is not a vendor product. Text on the site is licensed CC BY-NC 4.0.
That license lets you share the text if you give credit, and not for commercial use. The code is MIT licensed. That is a common license that lets people use and change the code.
Pages marked Draft are still being checked. The footer invites corrections.
The same about page points to Tributary. The author describes Tributary as a supply chain digital twin he built so you can see these decisions interact in a browser. A digital twin is a software copy you can try without touching the real operation.
That is a separate project. This review is about the map.
What to do next
If you are new to the subject, the homepage button starts at Foundations. If you are interviewing for one of the four roles, open that prep path and read the gist before the deep dive. If a stop is still marked Draft, treat the numbers on it as unchecked by the author.
That is what the about page says Draft means.
What to watch
Watch whether more stops move from Draft to Checked. Also watch whether the homepage still describes the map as 11 lines and 105 stops. Those are the claims a later look can verify on the site itself.
Sources
- Primary — Decision Atlas, Learn supply chain one decision at a time (checked 17 October 2026). Establishes the headline, the 11 lines and 105 stops, the three depths, the interview kit on every stop, and the four prep paths.
- Primary — Decision Atlas, About (checked 17 October 2026). Establishes the author, the interview kit contents, Draft and Checked, the license, the independence note, and the Tributary mention.
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