LTI vs SCORM – What's the Difference?
Your LMS settings page offers two ways to add learning content: one says "SCORM package," and the other says "External tool" or "LTI." A vendor tells you their product works with both, and your colleague says LTI is newer, so it must be better. Neither of those statements helps you decide what to do with the course sitting on your desk. LTI vs SCORM: what's the actual difference, and which one should you use?
SCORM packages a course so it runs inside your LMS; LTI (Learning Tools Interoperability) connects your LMS to a tool that keeps running on someone else's server. With SCORM, you upload a zip file, the LMS hosts it, and the course reports completion, score and progress back through a browser API. With LTI, nothing is uploaded: the LMS sends the learner to an external tool with a secure, signed message saying who they are and where they came from, and the tool can send a grade back. Use SCORM for self-contained courses you own and want to host. Use LTI for external platforms such as simulations, coding labs, video services or publisher content.
How Does SCORM Work?
SCORM works by putting the content inside the LMS. You publish a course from an authoring tool as a zip file with a manifest at its root, upload it, and the LMS stores and serves those files. When a learner launches the course, it finds a JavaScript API the LMS provides and reports values such as completion status, score, time and a bookmark.
Think of SCORM as moving furniture into your house. Once it's inside, it's yours to arrange, and it keeps working whether or not the original store is still in business. The trade-off is that updates mean bringing in a new piece of furniture: republish, re-upload and re-test.
How Does LTI Work?
LTI works by sending the learner out to a tool and, optionally, bringing a grade back. If SCORM is furniture you move in, LTI is a door in your house that opens into a room someone else maintains.
In LTI terms, the LMS is the platform and the external application is the tool. An administrator registers the tool once, exchanging keys and settings, and after that instructors or course builders add links to the tool inside courses. When a learner clicks one, the LMS sends a signed launch message with their identity, role and course context. The tool trusts that message, so the learner doesn't need to log in again.
The current version, LTI 1.3, uses modern web security standards (OAuth 2.0, OpenID Connect and signed JSON Web Tokens). Alongside it, a group of services called LTI Advantage adds three useful extras:
- Assignment and Grade Services, so tools can create gradebook columns and send scores back
- Names and Role Provisioning Services, so tools can see the course roster
- Deep Linking, so instructors can pick specific content inside a tool and drop it into a course
LTI is maintained by 1EdTech, the organization formerly known as IMS Global Learning Consortium. Its LTI standard page has the official overview of the specification and its services.
LTI vs SCORM: How Do They Compare?
The quickest way to see the LTI vs SCORM difference is to look at where the content lives and what data comes back.
| Question | SCORM | LTI |
|---|---|---|
| Where does the content live? | Inside the LMS, uploaded as a zip | On the tool provider's servers |
| What comes back to the LMS? | Completion, pass/fail, score, time, bookmark, interactions | Usually a grade, plus launch records |
| How are updates made? | Republish and re-upload | The provider updates the tool; links stay the same |
| Who controls access? | The LMS, entirely | Shared: LMS launches, tool enforces its own rules |
| Typical use | Authored eLearning courses | Simulations, labs, video, publisher content, assessment platforms |
| Works offline from the vendor? | Yes, once uploaded | No, depends on the tool's availability |
Neither one is newer and therefore better, because they solve different problems. In practice, education-focused platforms lean heavily on LTI for external tools, while corporate training catalogs are still mostly SCORM.
When Should You Use SCORM?
Use SCORM when you own the course and want it fully under your control. It's the right fit for:
- Courses built in-house with an authoring tool
- Compliance training where you need completion, score and dates stored in the LMS
- Content that must keep working even if a vendor relationship ends
- Organizations whose security rules limit sending learner data to outside services
SCORM also gives you more tracking detail than a typical LTI grade: status, score, time and question-level interactions, all stored in your LMS's own records.
When Should You Use LTI?
Use LTI when the learning experience depends on a platform that can't, or shouldn't, be packaged into a zip file. Good examples:
- Simulation, virtual lab or coding environments that run on the provider's servers
- Video, discussion or assessment platforms with their own features and data
- Publisher or vendor content that's updated centrally and licensed per learner
- Tools shared across many LMS platforms, where the provider wants one version to maintain
Before you add an LTI tool, check what data it sends to the vendor and what comes back. Ask whether grades flow to your gradebook automatically, and whether your organization's data rules allow learner names and emails to leave the LMS.
How Do You Add an LTI Tool to Your LMS?
Adding an LTI 1.3 tool is a one-time setup between your LMS administrator and the tool provider, followed by simple link-adding inside courses. The exact screens differ by platform, but the steps follow the same pattern:
- The tool provider gives you its configuration details: launch URLs, a login initiation URL and a public key or key set URL.
- Your administrator registers the tool in the LMS and receives the LMS's own details (client ID, deployment ID and key URLs) to send back to the provider.
- The administrator turns on the services you need, such as grade passback or roster access, and decides which courses can use the tool.
- Course builders add the tool to a course, often choosing specific content through Deep Linking.
- Someone launches it as a test student, completes an activity and confirms the grade lands in the gradebook.
Compare that with SCORM, where there's no registration step at all: you upload a package and test it. LTI asks for more setup up front and pays it back when the provider updates content without you lifting a finger.
Can You Use LTI and SCORM Together?
Yes, and most organizations end up using both, which is perfectly healthy. A single course might include an authored SCORM module for the core content and an LTI link to a hands-on simulation for practice.
Some content vendors also use LTI instead of handing out SCORM files, so they can update courses centrally and control licensing. That arrangement is convenient, but it means your access depends on the vendor's servers and contract. For anything compliance-critical, confirm that completion records land in your LMS, not just in the vendor's platform.
What If You Need More Detail Than Either Provides?
Then you've reached xAPI territory, since SCORM records a fixed set of fields and LTI mostly returns a grade. Neither tells you which decisions a learner made inside a simulation or which steps they struggled with on the job. xAPI records those moments as statements in a Learning Record Store, and many tools can send them alongside an LTI or SCORM launch. If you're heading that way, learning to write good xAPI statements is the skill that makes the data useful.
LTI vs SCORM: Furniture You Own or a Door to Someone Else's Room
The LTI vs SCORM choice comes down to where the content should live. SCORM moves a course into your LMS, where you control it and get detailed completion data, while LTI opens a secure door from your LMS to a tool hosted elsewhere, with a grade coming back through the door when you need it.
Look at your next piece of content and ask one question: do we own it and want to host it, or is it a platform someone else runs? The answer usually picks the standard for you.