# 🚀 Method Execution Interface

Once a method is selected, the **Execution Form** is automatically populated with all required inputs and configuration options.

These are defined in the method’s `method.json` and vary depending on the type of algorithm and its expected inputs.

---

## ⚙️ Runtime Environment

Each method is associated with a **runtime** environment defined by the `ccpimage` parameter.  
This specifies the Docker image in which the method will execute.

In most cases, this runtime is **fixed**, but some methods allow the user to choose among predefined options.

---

## 📥 Input Parameters

The form displays different types of input fields based on the method definition:

- **Runtime (`ccpimage`)**: Docker image used to execute the method
- **Files or URLs**: Paths to input files, workspace files, or remote URLs
- **Numeric/Text parameters**: Configuration values required by the method (e.g., thresholds, number of iterations)
- **Annotations**: Optional metadata or tags used to describe the execution

Each input field includes a label, optional description, and format hint (e.g., file, URL, number).

---

## 📦 Output Options

You can configure which execution logs to capture:

- **Standard Output**: captures general messages and progress logs
- **Standard Error**: captures error or warning messages

These options appear at the bottom of the form and affect the archived results.

---

## 🗄️ Archiving Behavior

In the **Options** section, users can choose how the execution context will be saved:

- **Archive full execution provenance**: saves inputs, outputs, logs, and metadata
- **Archive outputs only**: saves only the result files, without additional metadata
- **Do not archive**: results will be visible temporarily but not saved

![Archiving options](/_static/imgs/cpp_execution_options.png)

---

## 🔗 Related Pages

- ☁️ [Cloud Computing Platform](./02_engine_ccp)

- 🚦 [Execution Monitor](./04_execution_monitor)

- 👨‍💻 [Building simple methods](/01_quickstart/05_building_simple_method)

- 🛠 [Guide for methods development](/04_methods_development/00_index)