gistfile1.cs

public class RecordedItem
{
}

public interface IRecordedItemsProcessor
{
    ObservableCollection<RecordedItem> Load(string name);
    void Save();

}

public interface IRecordedItemParser<T>
{
    RecordedItem Parse(T itemToParse);
}

public class FileParser: IRecordedItemParser<string>
{
    public RecordedItem Parse(string itemToParse)
    {
        return null;
    }
}


public class FileLoadingProcessor : IRecordedItemsProcessor
{
    private readonly FileParser _parser;


    public FileLoadingProcessor(FileParser parser)
    {
        _parser = parser;
        _parser.Parse("");
    }

    public ObservableCollection<RecordedItem> Load(string name)
    {
    }

    public void Save()
    {
    }


}

public class MyClass
{
    private readonly IRecordedItemsProcessor _processor;

    public MyClass(IRecordedItemsProcessor processor)
    {
        _processor = processor;
    }
}